CYStech Electronics Corp. Spec. No. : C521E3
Issued Date : 2003.04.02
Revised Date :2005.06.08
Page No. : 1/3
LM7805XE3 CYStek Product Specification
3-TERMINAL POSITIVE VOLTAGE REGULATOR
LM7805XE3
Description
The LM7805XE3 series of three-terminal positive regulators are
available in the TO-220AB package. These regulators can provide
local on -card regulation, eliminating the distribution problems
associated with single point regulation. Each employs internal current
limiting, thermal shutdown and safe operating area protection, making it essentially indestructible.
If adequate heat sinking is provided, they can deliver over 1A output current. Although designed
primarily as fixed voltage regulators, these devices can be used with external components to
obtain adjustable voltages and currents.
LM7805XE3 is characterized for operation from 0°C to +125°C, and if operating temperature is
always high, please refer to the power dissipation curve.
Absolute Maximum Ratings (Ta=25°C)
• Input Voltage ....................................................................................................................... 35 V
• Total Power Dissipation .................................................................................... Internally limited
• Operating Temperature Range .......................................................................... 0 °C to +125 °C
• Maximum Junction Temperature ..................................................................................... 125 °C
• Storage Temperature Range .......................................................................... -55 °C to +150 °C
• Lead Temperature (Soldering 10S).................................................................................. 230 °C
Typical Application Schematic Diagram
6.3V
3.4K
200
10K
200
1K
2K
0.3
26
4K
20pF
4K
1K
12.1K
1.2
26
1.9K
30K
VREF
Input
Output
GND
LM7805 Vout Vin
3
1
2
C1 C2
Note:
C1 and C2 are required if regulator is
located far from power supply filter
and load, or oscillation may induced
on the loop.
TO-220AB
CYStech Electronics Corp. Spec. No. : C521E3
Issued Date : 2003.04.02
Revised Date :2005.06.08
Page No. : 2/3
LM7805XE3 CYStek Product Specification
Electrical Characteristics
Vin=10V, Io=500mA, 0°C≤Tj≤125°C (unless otherwise noted)
LM7805A
Symbol Parameter Conditions Min Typ Max Units
Tj=25°C 4.85 5 5.15
Vo Output Voltage PD≤15W, 5mA≤Io≤1A 4.85 5 5.15 V
Tj=25°C, 7V≤Vin≤25V - 4 50
∆Vo Line Regulation Tj=25°C, 8V≤Vin≤25V - 1.6 25 mV
5mA≤Io≤1.5A - - 100
∆Vo Load Regulation 250mA≤Io≤750mA - - 50
mV
IQ Quiescent Current
Io≤1A, Tj=25°C - 5.5 8 mA
5mA≤Io≤1A - - 0.5
∆IQ Quiescent Current
Change 7V≤Vin≤25V - - 1.3
mA
Vn Output Noise Voltage Ta=25°C, 10Hz≤f≤100KHz - 40 200 uV
RR Ripple Rejection 8V≤Vin≤18V, f=120Hz - 68 - dB
VD Dropout Voltage Tj=25°C, Io=1A - 2 - V
Isc Short Circuit Current Tj=25°C - 1.5 - A
Ipk Peak Output Current Tj=25°C 1.7 - - A
∆Vo / ∆T Average Tc of Vout 0°C≤Tj≤+125°C, Io=5mA - -0.8 -
mV/°C
LM7805B
Symbol Parameter Conditions Min Typ Max Units
Tj=25°C 4.8 5 5.2
Vo Output Voltage PD≤15W, 5mA≤Io≤1A 4.75 5 5.25 V
Tj=25°C, 7V≤Vin≤25V - 4 100
∆Vo Line Regulation Tj=25°C, 8V≤Vin≤25V - 1.6 50 mV
5mA≤Io≤1.5A - - 100
∆Vo Load Regulation 250mA≤Io≤750mA - - 50
mV
IQ Quiescent Current
Io≤1A, Tj=25°C - 5.5 8 mA
5mA≤Io≤1A - - 0.5
∆IQ Quiescent Current
Change 7V≤Vin≤25V - - 1.3
mA
Vn Output Noise Voltage Ta=25°C, 10Hz≤f≤100KHz - 100 300 uV
RR Ripple Rejection 8V≤Vin≤18V, f=120Hz 62 73 - dB
VD Dropout Voltage Tj=25°C, Io=1A - 2.5 - V
Isc Short Circuit Current Tj=25°C - 1.5 - A
Ipk Peak Output Current Tj=25°C 1.7 - - A
∆Vo / ∆T Average Tc of Vout 0°C≤Tj≤+125°C, Io=5mA - -0.8 -
mV/°C
CYStech Electronics Corp. Spec. No. : C521E3
Issued Date : 2003.04.02
Revised Date :2005.06.08
Page No. : 3/3
LM7805XE3 CYStek Product Specification
TO-220AB Dimension
*: Typical
Inches Millimeters Inches Millimeters
DIM Min. Max. Min. Max.
DIM Min. Max. Min. Max.
A 0.2197 0.2949 5.58 7.49 I - *0.1508 - *3.83
B 0.3299 0.3504 8.38 8.90 K 0.0295 0.0374 0.75 0.95
C 0.1732 0.185 4.40 4.70 M 0.0449 0.0551 1.14 1.40
D 0.0453 0.0547 1.15 1.39 N - *0.1000 - *2.54
E 0.0138 0.0236 0.35 0.60 O 0.5000 0.5618 12.70 14.27
G 0.3803 0.4047 9.66 10.28 P 0.5701 0.6248 14.48 15.87
H - *0.6398 - *16.25
Notes: 1.Controlling dimension: millimeters.
2.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material.
3.If there is any question with packing specification or packing method, please contact your local CYStek sales office.
Material:
• Lead: 42 Alloy ; solder plating
• Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0
Important Notice:
• All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of CYStek.
• CYStek reserves the right to make changes to its products without notice.
• CYStek semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems.
• CYStek assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
A B
E
G
IK
M
O
P
3
2
1
C
N
H
D
4
Style: Pin 1.Vin 2.Ground 3.Vout
4.Ground
3-Lead TO-220AB Plastic Package
CYStek Package Code: E3
Marking:
